As embodied by "You're Not the Only One I Know."
Harriet's voice is a lot like Chrissie Hynde's in that she could basically be singing the dictionary and I'd fall over. But she is vulnerable where Chrissie is tuff.
Maybe the real point is: she's not humming banalities. She's singing about ambivalence and self-doubt and ennui and regret and all the things that are so relevant today but she was doing this in the 80s. When a lot of music was shit and so it really stood out as gem-like then, and now.
Plus, for you guitar nerds out there, there's some Johnny Marr/Smiths-like playing happening here: loads of 7ths (Fmaj7/Cmaj7/Dmin7) that give this song and many others they recorded a chiming, open-ended quality that matches the lyrics.
I heart this band and I have for decades now. (swoon)